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@ARTICLE{Wieboldt:1022197,
author = {Wieboldt, R. and Lindt, K. and Pohlmeier, Andreas and
Mattea, C. and Stapf, S. and Haber-Pohlmeier, Sabine},
title = {{E}ffects of {S}alt {P}recipitation in the {T}opmost {S}oil
{L}ayer{I}nvestigated by {NMR}},
journal = {Applied magnetic resonance},
volume = {54},
issn = {0937-9347},
address = {Wien [u.a.]},
publisher = {Springer},
reportid = {FZJ-2024-01318},
pages = {1607–1631},
year = {2023},
abstract = {The drying of highly concentrated aqueous salt solutions in
sand and soil has beeninvestigated by one-dimensional
spatially resolved low-field relaxation measurementsof 1H
nuclei in water as well as high-field MRI of 1H and 23Na
nuclei ofwater and sodium ions. Water evaporates until the
solutions in the solid matrix reachsaturation conditions,
when salt begins to crystallize. Depending on salt type
andconditions, such as actual soil water content and air
humidity, this crystallizationcan occur above (efflorescent)
or below (subflorescent) the soil surface. Both effectsoccur
in nature and affect the evaporation behavior of water. The
formation of saltprecipitate domains is demonstrated by MRI,
where the precipitate domains remainpenetrable to water.
Complete drying is achieved in the top 2 mm of soil with
theexception of strongly hygroscopic perchlorates which
maintain a constant amountof liquid water under ambient
laboratory conditions and dry air. This situation
isconsidered similar to the co-existence of perchlorates and
water in strongly eutecticmixtures on Mars.},
cin = {IBG-3},
ddc = {620},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {2173 - Agro-biogeosystems: controls, feedbacks and impact
(POF4-217) / SFB 1313 C05 - Nicht-invasive Bildgebung von
Experimenten auf der REV-Skala zum Verständnis des
Einflusses von Fluid-Feststoff-Reaktionen auf Strömung und
Transport in porösen Medien (C05) (393212668)},
pid = {G:(DE-HGF)POF4-2173 / G:(GEPRIS)393212668},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001035534900001},
doi = {10.1007/s00723-023-01568-1},
url = {https://juser.fz-juelich.de/record/1022197},
}